GB2576468A - Distributed storage network - Google Patents

Distributed storage network Download PDF

Info

Publication number
GB2576468A
GB2576468A GB1918307.8A GB201918307A GB2576468A GB 2576468 A GB2576468 A GB 2576468A GB 201918307 A GB201918307 A GB 201918307A GB 2576468 A GB2576468 A GB 2576468A
Authority
GB
United Kingdom
Prior art keywords
value
source name
proposal message
proposal
units
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB1918307.8A
Other versions
GB201918307D0 (en
GB2576468B (en
Inventor
Khadiwala Ravi
Keith Resch Jason
Dhuse Gregory
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Publication of GB201918307D0 publication Critical patent/GB201918307D0/en
Publication of GB2576468A publication Critical patent/GB2576468A/en
Application granted granted Critical
Publication of GB2576468B publication Critical patent/GB2576468B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
    • G06F3/0638—Organizing or formatting or addressing of data
    • G06F3/0643—Management of files
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
    • G06F3/061—Improving I/O performance
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
    • G06F3/0614—Improving the reliability of storage systems
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
    • G06F3/0614—Improving the reliability of storage systems
    • G06F3/0617—Improving the reliability of storage systems in relation to availability
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
    • G06F3/0614—Improving the reliability of storage systems
    • G06F3/0619—Improving the reliability of storage systems in relation to data integrity, e.g. data losses, bit errors
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
    • G06F3/0638—Organizing or formatting or addressing of data
    • G06F3/064—Management of blocks
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
    • G06F3/067—Distributed or networked storage systems, e.g. storage area networks [SAN], network attached storage [NAS]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/08—Error detection or correction by redundancy in data representation, e.g. by using checking codes
    • G06F11/10—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's
    • G06F11/1076—Parity data used in redundant arrays of independent storages, e.g. in RAID systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Quality & Reliability (AREA)
  • Computer Security & Cryptography (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
  • Detection And Correction Of Errors (AREA)
  • Computer And Data Communications (AREA)

Abstract

A method begins by a processing module receiving a request to store a data object in distributed storage (DS) units. The processing module generates and transmits a proposal message that includes a source name, a value for the source name, and a proposal attempt identifier. The processing module then receives a threshold number of proposal message responses from the plurality of DS units, and when the proposal message responses indicate that no other proposal messages have been received by the DS units, uses the value for the source name included within the proposal message as a persistent value for the source name, and the method continues with the processing module notifying the requesting computing device. When the proposal message responses indicate that at least one other proposal message has been received by the DS unit of the plurality of DS units, the method continues with the processing module employing a third value for the source name as the persistent value for the source name.

Claims (20)

1. A computing device comprising: an interface configured to interface and communicate with a dispersed or distributed storage network (DSN); memory that stores operational instructions; a processing module operably coupled to the interface and to the memory, wherein the processing module, when operable within the computing device based on the operational instructions, is configured to: receive, from a requesting computing device and via the DSN, a request to store a data object within a plurality of distributed storage (DS) units; generate a proposal message that includes a source name associated with the data object, a first value for the source name, and a proposal attempt identifier; transmit the proposal message to the plurality of DS units; receive, in response to the proposal message, a threshold number of proposal message responses from the plurality of DS units, wherein a proposal message response of the threshold number of proposal message responses is received from a DS unit of the plurality of DS units and corresponds to a second value for the source name that is most recently accepted by the DS unit and further indicates whether the DS unit of the plurality of DS units has received any other proposal message; when the proposal message response of the threshold number of proposal message responses that is received from the DS unit of the plurality of DS units indicates that no other proposal messages has been received by the DS unit of the plurality of DS units, employ the first value for the source name included within the proposal message as a persistent value for the source name and notify the requesting computing device of the persistent value for the source name; and when the proposal message response of the threshold number of proposal message responses that is received from the DS unit of the plurality of DS units indicates that at least one other proposal message has been received by the DS unit of the plurality of DS units, employ a third value for the source name based on the threshold number of proposal message responses from the plurality of DS units as the persistent value for the source name and notify the requesting computing device of the persistent value for the source name.
2. The computing device of claim 1 , wherein the persistent value is determined based on execution of a deterministic function by the processing module.
3. The computing device of claim 1 , wherein the third value for the source name is equal to the second value for the source name.
4. The computing device of claim 2, wherein the deterministic function is further executed by other processing units receiving proposal message responses for the source name and further wherein executing the deterministic function results in the third value for the source name.
5. The computing device of claim 1 , wherein the persistent value is determined based on a balloting process executed by the processing module.
6. The computing device of claim 5, wherein the balloting process includes choosing a ballot value based on a timestamp associated with the proposal message.
7. The computing device of claim 5, wherein the balloting process results in two potential persistent values, and the persistent value is chosen from the two potential persistent values after a second processing module and a third processing modules associated with the two potential persistent values, respectively, re-transmit proposal messages transmitted after the processing module receives the threshold number of proposal messages.
8. The computing device of claim 1 , wherein a select other processing module is associated with the third value and the third value is determined after the select other processing module transmits a proposal message associated with the third value after the processing module receives the threshold number of proposal messages.
9. The computing device of claim 8, wherein the transmitting a proposal message associated with the third value after the processing module receives the threshold number of proposal messages by the select other processing module is based on the select other processing module determining that the proposal message associated with the third value includes a preferred candidate value for the persistent value.
10. A method for execution by one or more processing modules of one or more computing devices of a dispersed storage network (DSN), the method comprises: receiving, from a requesting computing device and via the DSN, a request to store a data object within a plurality of distributed storage (DS) units; generating a proposal message that includes a source name associated with the data object, a first value for the source name, and a proposal attempt identifier; transmitting the proposal message to the plurality of DS units; receiving, in response to the proposal message, a threshold number of proposal message responses from the plurality of DS units, wherein a proposal message response of the threshold number of proposal message responses is received from a DS unit of the plurality of DS units and corresponds to a second value for the source name that is most recently accepted by the DS unit and further indicates whether the DS unit of the plurality of DS units has received any other proposal message; when the proposal message response of the threshold number of proposal message responses that is received from the DS unit of the plurality of DS units indicates that no other proposal messages has been received by the DS unit of the plurality of DS units, employing the first value for the source name included within the proposal message as a persistent value for the source name and notifying the requesting computing device of the persistent value for the source name; and when the proposal message response of the threshold number of proposal message responses that is received from the DS unit of the plurality of DS units indicates that at least one other proposal message has been received by the DS unit of the plurality of DS units, employing a third value for the source name based on the threshold number of proposal message responses from the plurality of DS units as the persistent value for the source name and notifying the requesting computing device of the persistent value for the source name.
11. The method of claim 10, wherein the persistent value is determined based on execution of a deterministic function by the processing module.
12. The method of claim 10, wherein the third value for the source name is equal to the second value for the source name.
13. The method of claim 11, wherein the deterministic function is further executed by other processing units receiving proposal message responses for the source name and further wherein executing the deterministic function results in the third value for the source name.
14. The method of claim 10, wherein the persistent value is determined based on a balloting process executed by the processing module.
15. The method of claim 14, wherein the balloting process includes choosing a ballot value based on a timestamp associated with the proposal message.
16. The method of claim 14, wherein the balloting process results in two potential persistent values, and the persistent value is chosen from the two potential persistent values after a second processing module and a third processing modules associated with the two potential persistent values, respectively, re-transmit proposal messages transmitted after the processing module receives the threshold number of proposal messages.
17. The method of claim 10, wherein a select other processing module is associated with the third value and the third value is determined after the select other processing module transmits a proposal message associated with the third value after the processing module receives the threshold number of proposal messages.
18. The method of claim 17, wherein the transmitting a proposal message associated with the third value after the processing module receives the threshold number of proposal messages by the select other processing module is based on the select other processing module determining that the proposal message associated with the third value includes a preferred candidate value for the persistent value.
19. A method for execution by one or more processing modules of one or more computing devices of a dispersed storage network (DSN), the method comprises: receiving, by a computing device, an access request intended for a threshold number of storage units of a dispersed storage network (DSN), wherein the access request is for a value associated with a source name, and further wherein the computing device has received one or more proposal message responses from at least some of the threshold number of storage units; determining whether the value associated with the source name is a persistent value for the source name, wherein the determining is based on the computing device having received a threshold number of proposal message responses from the threshold number of storage units, and further wherein the determining is also based on whether threshold proposal message responses indicate that a consensus value has been determined for the value associated with the source name; and when the value associated with the source name is the persistent value for the source name, transmitting the value associated with the source name to the requesting computing device.
20. The method of claim 19, further comprises: when the value associated with the source name is not a persistent value for the source name, determining that a persistent value cannot be determined and selecting a previously stored value for the value associated with the source name and transmitting the previously stored value to the requesting computing device.
GB1918307.8A 2017-06-05 2018-06-01 Distributed storage network Active GB2576468B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US15/613,531 US10372381B2 (en) 2017-06-05 2017-06-05 Implicit leader election in a distributed storage network
PCT/IB2018/053932 WO2018224925A1 (en) 2017-06-05 2018-06-01 Distributed storage network

Publications (3)

Publication Number Publication Date
GB201918307D0 GB201918307D0 (en) 2020-01-29
GB2576468A true GB2576468A (en) 2020-02-19
GB2576468B GB2576468B (en) 2020-07-08

Family

ID=64459663

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1918307.8A Active GB2576468B (en) 2017-06-05 2018-06-01 Distributed storage network

Country Status (6)

Country Link
US (3) US10372381B2 (en)
JP (1) JP7015848B2 (en)
CN (1) CN110663031B (en)
DE (1) DE112018001561B4 (en)
GB (1) GB2576468B (en)
WO (1) WO2018224925A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10372381B2 (en) * 2017-06-05 2019-08-06 International Business Machines Corporation Implicit leader election in a distributed storage network
US10671482B2 (en) * 2017-09-12 2020-06-02 Cohesity, Inc. Providing consistency in a distributed data store
CN111488333B (en) * 2020-05-18 2023-07-11 网易（杭州）网络有限公司 Data processing method and device, storage medium and electronic equipment
CN114338695B (en) * 2022-03-10 2022-05-24 深圳艾灵网络有限公司 Leader election method, device, equipment and storage medium based on multiple copies

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110161681A1 (en) * 2008-03-31 2011-06-30 Cleversafe, Inc. Directory synchronization of a dispersed storage network
US8549351B2 (en) * 2007-10-09 2013-10-01 Cleversafe, Inc. Pessimistic data reading in a dispersed storage network
US20160335202A1 (en) * 2009-12-29 2016-11-17 International Business Machines Corporation Policy-based storage in a dispersed storage network
US20170019466A1 (en) * 2011-12-12 2017-01-19 International Business Machines Corporation Method for managing throughput in a distributed storage network

Family Cites Families (78)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4092732A (en) 1977-05-31 1978-05-30 International Business Machines Corporation System for recovering data stored in failed memory unit
US5485474A (en) 1988-02-25 1996-01-16 The President And Fellows Of Harvard College Scheme for information dispersal and reconstruction
US5454101A (en) 1992-09-15 1995-09-26 Universal Firmware Industries, Ltd. Data storage system with set lists which contain elements associated with parents for defining a logical hierarchy and general record pointers identifying specific data sets
US5987622A (en) 1993-12-10 1999-11-16 Tm Patents, Lp Parallel computer system including parallel storage subsystem including facility for correction of data in the event of failure of a storage device in parallel storage subsystem
US6175571B1 (en) 1994-07-22 2001-01-16 Network Peripherals, Inc. Distributed memory switching hub
US5848230A (en) 1995-05-25 1998-12-08 Tandem Computers Incorporated Continuously available computer memory systems
US5774643A (en) 1995-10-13 1998-06-30 Digital Equipment Corporation Enhanced raid write hole protection and recovery
US5809285A (en) 1995-12-21 1998-09-15 Compaq Computer Corporation Computer system having a virtual drive array controller
US6012159A (en) 1996-01-17 2000-01-04 Kencast, Inc. Method and system for error-free data transfer
US5802364A (en) 1996-04-15 1998-09-01 Sun Microsystems, Inc. Metadevice driver rename/exchange technique for a computer system incorporating a plurality of independent device drivers
US5890156A (en) 1996-05-02 1999-03-30 Alcatel Usa, Inc. Distributed redundant database
US6058454A (en) 1997-06-09 2000-05-02 International Business Machines Corporation Method and system for automatically configuring redundant arrays of disk memory devices
US6088330A (en) 1997-09-09 2000-07-11 Bruck; Joshua Reliable array of distributed computing nodes
US5991414A (en) 1997-09-12 1999-11-23 International Business Machines Corporation Method and apparatus for the secure distributed storage and retrieval of information
US6272658B1 (en) 1997-10-27 2001-08-07 Kencast, Inc. Method and system for reliable broadcasting of data files and streams
JPH11161505A (en) 1997-12-01 1999-06-18 Matsushita Electric Ind Co Ltd Media send-out device
JPH11167443A (en) 1997-12-02 1999-06-22 Casio Comput Co Ltd Interface device
US6415373B1 (en) 1997-12-24 2002-07-02 Avid Technology, Inc. Computer system and process for transferring multiple high bandwidth streams of data between multiple storage units and multiple applications in a scalable and reliable manner
US6374336B1 (en) 1997-12-24 2002-04-16 Avid Technology, Inc. Computer system and process for transferring multiple high bandwidth streams of data between multiple storage units and multiple applications in a scalable and reliable manner
CA2341014A1 (en) 1998-08-19 2000-03-02 Alexander Roger Deas A system and method for defining transforms of memory device addresses
US6356949B1 (en) 1999-01-29 2002-03-12 Intermec Ip Corp. Automatic data collection device that receives data output instruction from data consumer
US6609223B1 (en) 1999-04-06 2003-08-19 Kencast, Inc. Method for packet-level fec encoding, in which on a source packet-by-source packet basis, the error correction contributions of a source packet to a plurality of wildcard packets are computed, and the source packet is transmitted thereafter
US6571282B1 (en) 1999-08-31 2003-05-27 Accenture Llp Block-based communication in a communication services patterns environment
US6826711B2 (en) 2000-02-18 2004-11-30 Avamar Technologies, Inc. System and method for data protection with multidimensional parity
US6718361B1 (en) 2000-04-07 2004-04-06 Network Appliance Inc. Method and apparatus for reliable and scalable distribution of data files in distributed networks
EP1364510B1 (en) 2000-10-26 2007-12-12 Prismedia Networks, Inc. Method and system for managing distributed content and related metadata
US7103915B2 (en) 2000-11-13 2006-09-05 Digital Doors, Inc. Data security system and method
US7140044B2 (en) 2000-11-13 2006-11-21 Digital Doors, Inc. Data security system and method for separation of user communities
US8176563B2 (en) 2000-11-13 2012-05-08 DigitalDoors, Inc. Data security system and method with editor
US7146644B2 (en) 2000-11-13 2006-12-05 Digital Doors, Inc. Data security system and method responsive to electronic attacks
GB2369206B (en) 2000-11-18 2004-11-03 Ibm Method for rebuilding meta-data in a data storage system and a data storage system
US6785783B2 (en) 2000-11-30 2004-08-31 International Business Machines Corporation NUMA system with redundant main memory architecture
US7080101B1 (en) 2000-12-01 2006-07-18 Ncr Corp. Method and apparatus for partitioning data for storage in a database
US20020120874A1 (en) 2000-12-22 2002-08-29 Li Shu Method and system for secure exchange of messages
WO2002065275A1 (en) 2001-01-11 2002-08-22 Yottayotta, Inc. Storage virtualization system and methods
US20020174296A1 (en) 2001-01-29 2002-11-21 Ulrich Thomas R. Disk replacement via hot swapping with variable parity
US20030037261A1 (en) 2001-03-26 2003-02-20 Ilumin Corporation Secured content delivery system and method
US6879596B1 (en) 2001-04-11 2005-04-12 Applied Micro Circuits Corporation System and method for systolic array sorting of information segments
US7024609B2 (en) 2001-04-20 2006-04-04 Kencast, Inc. System for protecting the transmission of live data streams, and upon reception, for reconstructing the live data streams and recording them into files
GB2377049A (en) 2001-06-30 2002-12-31 Hewlett Packard Co Billing for utilisation of a data storage array
US6944785B2 (en) 2001-07-23 2005-09-13 Network Appliance, Inc. High-availability cluster virtual server system
US7636724B2 (en) 2001-08-31 2009-12-22 Peerify Technologies LLC Data storage system and method by shredding and deshredding
US7024451B2 (en) 2001-11-05 2006-04-04 Hewlett-Packard Development Company, L.P. System and method for maintaining consistent independent server-side state among collaborating servers
US7003688B1 (en) 2001-11-15 2006-02-21 Xiotech Corporation System and method for a reserved memory area shared by all redundant storage controllers
US7171493B2 (en) 2001-12-19 2007-01-30 The Charles Stark Draper Laboratory Camouflage of network traffic to resist attack
EP1547252A4 (en) 2002-07-29 2011-04-20 Robert Halford Multi-dimensional data protection and mirroring method for micro level data
US7051155B2 (en) 2002-08-05 2006-05-23 Sun Microsystems, Inc. Method and system for striping data to accommodate integrity metadata
US20040122917A1 (en) 2002-12-18 2004-06-24 Menon Jaishankar Moothedath Distributed storage system for data-sharing among client computers running defferent operating system types
JP2006526204A (en) 2003-03-13 2006-11-16 ディーアールエム テクノロジーズ、エルエルシー Secure streaming container
US7185144B2 (en) 2003-11-24 2007-02-27 Network Appliance, Inc. Semi-static distribution technique
GB0308264D0 (en) 2003-04-10 2003-05-14 Ibm Recovery from failures within data processing systems
GB0308262D0 (en) 2003-04-10 2003-05-14 Ibm Recovery from failures within data processing systems
US7415115B2 (en) 2003-05-14 2008-08-19 Broadcom Corporation Method and system for disaster recovery of data from a storage device
JP2007502470A (en) 2003-08-14 2007-02-08 コンペレント・テクノロジーズ Virtual disk drive system and method
US7899059B2 (en) 2003-11-12 2011-03-01 Agere Systems Inc. Media delivery using quality of service differentiation within a media stream
US8332483B2 (en) 2003-12-15 2012-12-11 International Business Machines Corporation Apparatus, system, and method for autonomic control of grid system resources
US7206899B2 (en) 2003-12-29 2007-04-17 Intel Corporation Method, system, and program for managing data transfer and construction
US7222133B1 (en) 2004-02-05 2007-05-22 Unisys Corporation Method for reducing database recovery time
US7240236B2 (en) 2004-03-23 2007-07-03 Archivas, Inc. Fixed content distributed data storage using permutation ring encoding
US7231578B2 (en) 2004-04-02 2007-06-12 Hitachi Global Storage Technologies Netherlands B.V. Techniques for detecting and correcting errors using multiple interleave erasure pointers
JP4446839B2 (en) 2004-08-30 2010-04-07 株式会社日立製作所 Storage device and storage management device
US7680771B2 (en) 2004-12-20 2010-03-16 International Business Machines Corporation Apparatus, system, and method for database provisioning
US7386758B2 (en) 2005-01-13 2008-06-10 Hitachi, Ltd. Method and apparatus for reconstructing data in object-based storage arrays
US7672930B2 (en) 2005-04-05 2010-03-02 Wal-Mart Stores, Inc. System and methods for facilitating a linear grid database with data organization by dimension
US7574579B2 (en) 2005-09-30 2009-08-11 Cleversafe, Inc. Metadata management system for an information dispersed storage system
US7953937B2 (en) 2005-09-30 2011-05-31 Cleversafe, Inc. Systems, methods, and apparatus for subdividing data for storage in a dispersed data storage grid
US8285878B2 (en) 2007-10-09 2012-10-09 Cleversafe, Inc. Block based access to a dispersed data storage network
US7904475B2 (en) 2007-10-09 2011-03-08 Cleversafe, Inc. Virtualized data storage vaults on a dispersed data storage network
US7546427B2 (en) 2005-09-30 2009-06-09 Cleversafe, Inc. System for rebuilding dispersed data
US8171101B2 (en) 2005-09-30 2012-05-01 Cleversafe, Inc. Smart access to a dispersed data storage network
US7574570B2 (en) 2005-09-30 2009-08-11 Cleversafe Inc Billing system for information dispersal system
US20070214285A1 (en) 2006-03-08 2007-09-13 Omneon Video Networks Gateway server
JP5586718B2 (en) * 2012-06-19 2014-09-10 株式会社東芝 CONTROL PROGRAM, HOST DEVICE CONTROL METHOD, INFORMATION PROCESSING DEVICE, AND HOST DEVICE
CN105659213B (en) 2013-10-18 2018-12-14 株式会社日立制作所 Restore without the target drives independent data integrality and redundancy shared in distributed memory system
US10020826B2 (en) * 2014-04-02 2018-07-10 International Business Machines Corporation Generating molecular encoding information for data storage
US9965336B2 (en) * 2014-04-30 2018-05-08 International Business Machines Corporation Delegating iterative storage unit access in a dispersed storage network
US10069915B2 (en) 2015-02-27 2018-09-04 International Business Machines Corporation Storing data in a dispersed storage network
US10372381B2 (en) * 2017-06-05 2019-08-06 International Business Machines Corporation Implicit leader election in a distributed storage network

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8549351B2 (en) * 2007-10-09 2013-10-01 Cleversafe, Inc. Pessimistic data reading in a dispersed storage network
US20110161681A1 (en) * 2008-03-31 2011-06-30 Cleversafe, Inc. Directory synchronization of a dispersed storage network
US20160335202A1 (en) * 2009-12-29 2016-11-17 International Business Machines Corporation Policy-based storage in a dispersed storage network
US20170019466A1 (en) * 2011-12-12 2017-01-19 International Business Machines Corporation Method for managing throughput in a distributed storage network

Also Published As

Publication number Publication date
WO2018224925A1 (en) 2018-12-13
JP2020524324A (en) 2020-08-13
JP7015848B2 (en) 2022-02-03
DE112018001561B4 (en) 2021-04-08
US11620087B2 (en) 2023-04-04
DE112018001561T5 (en) 2019-12-24
US10372381B2 (en) 2019-08-06
CN110663031B (en) 2022-12-30
US20190332273A1 (en) 2019-10-31
GB201918307D0 (en) 2020-01-29
US20180349039A1 (en) 2018-12-06
US20220066644A1 (en) 2022-03-03
US11204723B2 (en) 2021-12-21
CN110663031A (en) 2020-01-07
GB2576468B (en) 2020-07-08

Similar Documents

Publication Publication Date Title
GB2576468A (en) Distributed storage network
US20170346927A1 (en) Information processing method, client, server and computer-readable storage medium
US8484480B2 (en) Transmitting information using virtual input layout
JP2010532972A5 (en)
EP2136313A1 (en) Generating a challenge response image including a recognizable image
CN103973545A (en) Processing method, device and system of instant message
RU2016117388A (en) METHOD, SYSTEM AND COMPUTER SOFTWARE PRODUCT FOR PREVENTING SPOUPING IN A CAR NETWORK
JP2019516171A5 (en)
CN105099763B (en) Equipment goes offline based reminding method and device
US9459933B1 (en) Contention and selection of controlling work coordinator in a distributed computing environment
JP2018110357A5 (en)
GB2609359A (en) Privacy centric data security in cloud environment
WO2015078291A1 (en) Information prompting method and device for prompting ticket drawing result
RU2011129701A (en) METHOD, SERVER, CLIENT AND SYSTEM FOR INSTANT EXCHANGE OF MESSAGES
CN102891851A (en) Access control method, equipment and system of virtual desktop
RU2014135645A (en) METHOD FOR PROCESSING INCOMING ELECTRONIC MESSAGES AND SERVER
CN104599092B (en) For monitoring the method and apparatus of order business
CN104917731A (en) Method and system for improving data display speed, server and browser
CN110012051A (en) Notify method for pushing, device, terminal device, server and system
CN103051742A (en) IP (Internet Protocol) address attribute determining method, page processing method, relevant equipment and system
US11334476B2 (en) Client-side survey control
CN106899554A (en) A kind of method and device for preventing ARP from cheating
JP2015534139A (en) Method and apparatus for efficiently executing modules
CN110933070A (en) User identification method, system, equipment and computer readable storage medium
JP5162686B2 (en) Method for retrieving object from DM client and device management system related thereto

Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)

Effective date: 20220314